A solid-state air flow sensor for automotive use

Sasayama, Takao; Nishimura, Yutaka; Sakamoto, Shinichi; Hirayama, Taku

doi:10.1016/0250-6874(83)85016-1

Cited by 9 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Unfortunately the multiplying factor is itself a variable, depending on the pulsating flow frequency, amplitude waveform and possibly the acoustic characteristics of the pipe-work. Thus a single hot-wire measurement can only give an approximate indication of the velocity pulsation amplitude [4,7,16]. Paper: ASAT-13-FL-02…”

Section: Measurement Of Compressible Pulsating Flowmentioning

confidence: 99%

“…This is particularly true with turbine meters [9] and also differential pressure type flowmeters such as the orifice plate [1]. The parameter which appears in the theoretical expressions for metering error for both orifice plates and turbine meters is the amplitude ratio U rms /U [1,7,10,16] A device such as a hot-wire probe can only respond to local velocity [4]. Recently, one promising principle with the fastest growing market share lies in ultrasonic devices which sending ultrasonic beams through the fluid.…”

Section: /21mentioning

confidence: 99%

“…He was attempting to solve the obvious pulsation problem which arose when differential-pressure type flowmeters were used to measure pulsating flows. The pulsation amplitude at the flow meter is reduced when a sufficiently large receiver is introduced into the system between the meter and the source of pulsation, as shown in figure (4). The effectiveness of the damping Paper: ASAT-13-FL-02 6/21…”

Section: /21mentioning

confidence: 99%

See 2 more Smart Citations

Review of Compressible Pulsating Flow Effects on System Performance

Metwally

2009

International Conference on Aerospace Sciences and Aviation Tec

View full text Add to dashboard Cite

Pulsating flow is as old as the human being. It appears in different forms from a compressible to incompressible, one phase, two or multi phase flows. Some forms of pulsating flow are favorable like that increase the combustion efficiency in combustors. Other forms of pulsating flow are harmful such as pulsation associated with compressor surge leading to increase of the noise level. Understanding the behavior of the pulsating flow in different forms, its effects on the flow system performance and on the gas turbine engine cooling system are reviewed. Reynolds number, velocity gradient, pressure gradient and frequency are the main parameters that affecting the pulsating flow behavior. The measurement of pulsating flow in its forms is one of the major tasks of the researchers. From the review it appears that number of researches tried to cover the whole sides of pulsating flow phenomena and the different ways to measure it. However, a lot of works is still needed to be understood thoroughly the effect of pulsating flow on the flow systems and how it could be used to developed the performance.

show abstract

Section: Measurement Of Compressible Pulsating Flowmentioning

confidence: 99%